Control apparatus



Nov. 16 1926..

B. o. AUSTIN CONTROL APPARATUS Filed ct 11. 1919 WITNESSES: INVENTOR 505mm 0 Awf/n 3 7 ATZI'ORNEY Patented Nei 16,1 2 1 i v nd; to systems of candor for "dyhame -el'ec tric" mac brelearie iiway motors and thelik v a v. meanest automatic control systems, 311th figigrades may be" encountered that'an as fishing"currenthi sam iehepmpcrtions n q circuit position whereby" ftir'tlie'r' control operation, "Whio is dependent npen: the dropping of the current relay to its lowor Various schemes have been proposed in the neam rer allowing the-motorman, under t he abnormal conditions mentioned; to manu ally effect control of the motors, but, in 2 practically all such cases,itwvas almost im- 2 lng 'more t an oneloperating step, thereby producing too rapid an acceleration, accom- Q panied. by {a relatively high current, unless 1 25 the motorman exercised very great skill, in-

cluding,' in manyinstances, a precisely-timed thelikel One object of my present invention, therefore, lStO provide control apparatus, in a system of the i above-indicated character, wherebymanual control. ofthe railway vehicle may be efi'ected Whenever the limit the sametime, the main Controller will be positively prevented fromitaking more than one note unless the motorman voluntarily lationr i i i -1 More specifically stated, it" is the object of In invention to provide a double-coil notching relay which is'so associated with the main controller and an auxiliary switch that the desired funetionsare automatically thecustomary acceleration under the control of thecurrentrelay is effected step-bystep, whereas manual control, producing efl'ected by the motorrnan by repeated mationed, i- I a -Other minor objects of m become evident from the following detailed Mm umm s-en v I p flips-heated filfe'd' math; 11, ieia sala m g ain I iil tentiorl relates to control apparatus nes and itlfh atiw special relation p,

'tllazcomhiheeutomatichnd manu ar chatror of'theprefered ferrh 1 i I" thah eraahn;err-airwa whats-by suitable; base-p I ,m raiy bedrawh to clausethe current relay or lilnit switch to stick' in its u per or' open'y orcircuit-closing position, 'is prevented a possible to revent the controller from tak-v duration of pressure upon a push button, or

switchsticks in its upper position and, at.

follows a certain cyeleof control manipuperformed in such -rnanner that,- normally,

movement of only one step at atin e, maybe nipulation of the additional switchl' mh-- r I invention will lemme-mam: m msmeamnesia asst: Mathews p v; mumm es mntunacrvnme oomPanY, A. oonrona'rx'on or mmsstvam n descriptioii aka-fl ws nctionfvtith swo n-primingdhawingsywhehhtn The single figure is anewching relay:

Referring w r the drawm the preferred structurenotching' relag com ris s a a her-panama x0 w ich a secured a lurality of "supp or" standards 1% and lafi' 'forthe ting-ready interconnect anwmhh awn-1 of when is'-piveta1-1y--seciired to" a heaters or strip 129vvhich is rigidly attached to'the core 12 8 and the supporting bracket 126. A coll spring 130 serves to bias the armature i 28 to the illustrated lower or de-ene'rgized position, the sprlng acting] between a small bracket 131' secured to the supporting elevahwh; ng' ack-as U v spams; a net: coils 2e" amim, which arm" bracket 126 and one end of alever. 132, the

opposite end of whichis rigidly fastened'to l l y the armature28. For the purpose ofadjusting'the' tension of the spring 130 to the d e-t 5 crurns againstfthe arm 129, serves to vary more, the spring 130 has a'screw-thr eaded lating material, the contact clip 31 being electrically secured to "the armature 28, 'while the contact clip ,30 is fastened to the.

insulating member 134 and has noelectrical connection "with the armature 28.

The other magnet coil 27 is provided with Y similar accessories includinga central core, 136, a bent supportingarm 137for'the a rmature29, a biasing spring138 and an adjustable lever arm'l 39i, In'addit ion, 'ajchan H nel-shaped insulating member 33 issecured ,to the free end of the;arn'1ature 29v and car-j ries the contact platesv and 35 oI1 ,the op posite-inner surfacesIjof the'iichannel' arms. a a The contact member '32 constitutes a tip'ongl- "the free end of the armature29.w

The mechanical o eration of the 11 appara-f tus illustratedin t e'figure 'need be only briefly described; 'Inthe normalillustrated "positionpa circuit is established from con" ductor 82 to supporting arm 129, armature 28, contact clip 31, contact plate 32, armature 29, supporting arm 137 and conductor 83. Such circuit is interrupted by the energization of the actuating coil 26 and the consequent upward movement of the armature 28.

When the other magnet coil 27 is energized, the armature 29 moves toward the right to effect-engagement between the contact clip 31 and the contact plate 34. If, under such conditions, the other magnet coil 26 is energized, the armature 28 is lifted into a position to effect engagement between the contact clip and the contact'plate 35.

I do not Wish to be restricted to the specific structural details or arrangement of parts herein set forth, as various modificati0ns thereof may be made without departing from the spirit and. scope of my invention. I desire, therefore, that only such limitations shall be imposed as are indicated in the appended claims.

I claim as my invention:

1. Control apparatus comprising a plurality of transversely-related magnet coils having armatures biased to their open positions,

an insulating extension on one of said armatures, a plurality of contact members on opposite sides of said extension, a channelshaped insulating member secured to another armature, and three independent contact members for co-operating with the firstnamed contact members and located two on one side and one on the opposite side of the channel-shaped member.

2. Control apparatus comprising a plurality of magnet coils, a plurality of armatures therefor extending at right angles and adapted, when de-energized, to fall to their open positions, a plurality of insulated contact members controlled by, and extending BASGUM o. AUSTIN. 

